Demountable rim.



C. H. McKENDREE'.

DEMOUNTABLE RIM.

APPLICATION FILED AUGJ, I915.

1, 172,242. Patented Feb. 15,1916.

2 $HEETS-SHEET lc. H. McKENDREE. DEMOUNTABLE RIM.

APPLICATION FILED AUG- 7, 1915.

1,172,242. Patented Feb. 15,1916.

2 SHEETS-SHEET 2.

UTED s'ra'rns PaTEN'r OFFICE- CREED H. MCKENDREE, F LAKEVIEW, OREGON,-.ASSIGNOR OF ONE-TENTH TO E. H.

SMITH, ONE-TENTH TO F. P. LANE. ONE-TENTH TO W. A. MASSINGILL, ONE-TENTH I TO C. D. ARTHUR. AND ONE-TENTH TO MANUEL SANDERS. ALL OF LAKEVIEW,.-

OREGON.

DEMOUNTABLE RIM.

Specification of Letters Patent.

initeaieainis, 191

Application filed August 7, 1915. Serial No. 44,336.

a citizen of the United States, residing at- Lakeview, in' the county of Lake and State of Oregon, have invented certain new and useful Improvements in Demountable Rims,

of which the following is a'specification;

This invention relates .to demountablc rims, and more particularly to that class of such devices adapted to sustain any form of tread or tire upon a wheel and in such man ner as to be readily applied to and removable from the wheel.

The-primary object of this invention is to provide a demountable rim which shall em body positive means for securely holding the rim proper upon the wheel without the use of complicated or unsightly lo'cking means.

A further object of this invention is to provide a device of the character set forth with means whereby the demountable rim is placed upon the wheel in such manner that the rotation of the wheel will tend to tighten the demountable riln upon thewheeL.

A still further object of this invention is to provide means carried by the demountable rim adapted to so engage means carried by the wheel as to prevent transverse movement of the rim with relation to the wheel.

With these and other objects in view as will hereinafter appear, this invention consists in the combination of various related parts and elements of a demountable rim as hereinafter set forth, and more particularly pointed out in the appended claim.

Referring to the drawings forming a por tion of this specification and illustrating the preferred embodiment of this invention and in which the same reference characters indicate the same parts wherever used, Figure l is an elevation of the wheel showing the rim in locked position thereon; Fig. 2. is an elc vation of the wheel showing the rim in unlocked position read '-for removal; Fig. 3 is a detail perspective of one of the locking members earricd by the wheel; Fig. l is a detail perspective of one of the locking menu bers carriedby the demountable rim, and Fig. 5 shows the device for locking tlu demountable rim against rcmoval from the wheel.

The numeral (3 designates an annular ring formed of any suitable material, which may be providcd with means for holding an suitable tire or tread member, not 'sho'w'n'."55 Upon the inner portion of; the ringfland' preferably formed integral therewith are a plurality of projections 7 provided with-suit-lj ably inclined faces 8. 8. which are divided by a raised member 9 having a portion of -its?'60 upper surface flattened at 10, and afurther. portion inclined at 11 in a direction opposite to the incline of the faces 8, S, oftlie member '7. Any desired number of tliese: members may be placed upon the inner-ponies tion of the ring G.- I

Adjacent one of the members T is provided a small block 12 preferablyformed. integral with the ring 6 and extending across gthe inner face thereof. The ring fi-is -furth'e 10 provided with a cylindrjca'lliiiember1 v vided with a knurled cap a daptel ceive the valve stein .oea, pnmaan g ice; placed upon the ring tl'ufhen itii sfjde r use the device with sucli ti're 7 5 15 designates a wheel of any siiitab e type provided with a rim l6 l'iaving formed integraltherewith a plurality of members 17 1 having inclined faces 13, 18, divided by a central depression 1}! incline-d in the same direction as the faces 18. The angle of in. clination of the members 17 of .the rim 16 is opposite to that of the faces 8 of the mem her 7 upon the dcmountable rim (3. A'slot 20 is provided in the rim 16in order to permit the valve stem housing 13 to project thercthrongh when moved freely therein.

The device is assembled as follows: The valve stein housing i3 is placed within the slot 20 ottlie rim 16 of the wheel 15 and the demountable rim (3 brought over the periphery of thcwhecl as shown in Fig. 2 in such position as to cause the central projections J of the member 7 upon the demountable rim tto engage the depressions 19 of the member 17 upon the. rim lt' whereupon by turning the dcmountable rim in a clockwise direction the members 9 will engage the slots 19. The faces S, S of the members 7 will engage and ride upon the faces 18, 18 of the member 17 until the parts reach the Dosition shown in Fig. 1. When the partsare in this position a locking device comprising a wedge member 21 provided with a threaded extension is placed between the block 12 and the adjacent member? and its engaging mcmber 17, where by means of a washer 23 and a nut 24 adapted to engage -mou,nta'ble rim upon the wheel.

the threaded portion 22, a sufficient tightening of the wedge member 21 may be obtained to lock the parts of the wheel and rim together.

The inclined portion 1'1 of the member 4) reduces the height of the member 9 at t end of the member 7 where such membtr reaches its highest point, thus peru'fitt'in" the rim therein positioned to be asscmblcfi and'islide' transversely across the narrow portion of the faces 18, 18 of the member 17, thus-permitting of easy adjustment and replacement of the demountable rim. Any transverse movement of the demoilntable rim upon the rim of the wheel is prevented inclined faces 18, 18 thus lock the devicein position. Any counter clockwise movement of-th'edemountable rim upon the rim proper which-could'occur'by reverse movement of the vehicle to which the wheels are attached I is prevented by thedocking wedge 21, which "-n ay be-taken up by the nut 24 in order to insure a tight engagement-at all times.

Zl/Yithout further analysis the foregoing I will so-fully reveal the gist of this ii yention that others can by applying current knowledge readily adapt it for various applications without omitting certain features that, from the standpoint of the prior art, fairly constitute essentialcharacteristics of the generic or specific aspects of this inven= tion, and therefore such adaptations should and are intended to be comprehended within meaning and range of equivalency of the following claim.

Having thus described my invention what II claim as LE and desire to secure by Letters Pa nt In a wheel, the combination with a wheel rim, of a plurality of memb r on Said Wheel rim, each member comprising a plurality of inclined faces divided by a central depression inclined in the same direction, a demountable rim provided with a plurality of members, each member comprising a plurality of faces inclined opp sitely to said wheel rim members, said faces being divided by a raised central portion inclined in the same direction for a portion of its length and reversely inclined to the adjacent faces for the remainder of its length, the wheel rim members and the demountable rim members being adapted to engage each other to hold the demountable rim in place upon the wheel.

v In testimony whereof I affix my signature in presence of two witnesses.

I CREED H. MCKEND'RIQE.

Witnessesz' J. K. Moons, F. L. BROWNE, 

